<template>
    <div class="app-container">
      <el-form :model="queryParams" ref="queryForm" :inline="true" v-show="showSearch" label-width="100px">
        <el-form-item label="任务名称" prop="nodeName">
          <el-input
            v-model="queryParams.nodeName"
            placeholder="请输入任务名称"
            clearable
            @keyup.enter="handleQuery"
          />
        </el-form-item>
        <el-form-item label="流程状态" prop="flowStatus">
          <el-select v-model="queryParams.flowStatus" placeholder="请选择流程状态" clearable>
            <el-option
              v-for="dict in flow_status"
              :key="dict.value"
              :label="dict.label"
              :value="dict.value"
            />
          </el-select>
        </el-form-item>
        <el-form-item label="审批时间" prop="createTime">
          <el-date-picker
            clearable
            v-model="queryParams.createTime"
            type="datetime"
            value-format="YYYY-MM-DD HH:mm:ss"
            placeholder="选择创建时间">
          </el-date-picker>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" icon="Search" @click="handleQuery">搜索</el-button>
          <el-button icon="Refresh" @click="resetQuery">重置</el-button>
        </el-form-item>
      </el-form>
      <el-table :data="instanceList">
        <el-table-column type="selection" width="55" align="center" fixed />
        <el-table-column label="序号" width="55" align="center">
          <template #default="scope">
            {{ scope.$index + 1 }}
          </template>
        </el-table-column>
        <el-table-column label="流程实例id" align="center" prop="instanceId" :show-overflow-tooltip="true"/>
        <el-table-column label="流程名称" align="center" prop="flowName" :show-overflow-tooltip="true"/>
        <el-table-column label="任务名称" align="center" prop="targetNodeName" :show-overflow-tooltip="true"/>
        <el-table-column label="审批人" align="center" prop="approver" :show-overflow-tooltip="true"/>
        <el-table-column label="协作类型" align="center" prop="cooperateType" :show-overflow-tooltip="true">
          <template #default="scope">
            <dict-tag :options="cooperate_type" :value="scope.row.cooperateType"/>
          </template>
        </el-table-column>
        <el-table-column label="协作人" align="center" prop="collaborator" :show-overflow-tooltip="true"/>
        <el-table-column label="流程状态" align="center" prop="flowStatus" :show-overflow-tooltip="true">
          <template #default="scope">
            <dict-tag :options="flow_status" :value="scope.row.flowStatus"/>
          </template>
        </el-table-column>
        <el-table-column label="审批时间" align="center" prop="createTime" width="160" :show-overflow-tooltip="true">
          <template #default="scope">
            <span>{{ parseTime(scope.row.createTime) }}</span>
          </template>
        </el-table-column>
        <el-table-column label="操作" align="center" width="110" fixed="right" class-name="small-padding fixed-width">
          <template #default="scope">
            <el-button
              size="small"
              type="text"
              @click="showDoneList(scope.row.instanceId, scope.row.formPath, scope.row.testLeaveVo)"
              v-hasPermi="['flow:execute:doneList']"
            >审批记录</el-button>
            <el-button
              size="small"
              type="text"
              @click="toFlowImage(scope.row.instanceId)"
            >流程图</el-button>
            <el-button
              size="small"
              type="text"
              v-if="scope.row.ext"
              @click="handle(scope.row)"
            >查看</el-button>
          </template>
        </el-table-column>
      </el-table>
  
      <pagination
        v-show="total > 0"
        :total="total"
        v-model:page="queryParams.pageNum"
        v-model:limit="queryParams.pageSize"
        @pagination="getList"
      />
      <el-dialog title="流程图" v-model="flowChart" width="80%">
        <img :src="imgUrl" width="1000" style="margin:0 auto"/>
      </el-dialog>
      <component v-if="approve" v-bind:is="approve" :businessId="businessId" :taskId="taskId" :testLeaveVo="testLeaveVo" @refresh="getList"></component>
      <!-- 动态加载的组件 -->
      <el-dialog title="审批详情" :visible.sync="approveDialogVisible" width="80%">
        <component :is="dynamicComponent" v-if="dynamicComponent" :testLeaveVo="testLeaveVo" :taskId="taskId" :disabled="false"/>
      </el-dialog>
    </div>
  </template>
  
  <script setup name="Done">
  import { donePage } from "@/api/workflow/execute";
  import { flowImage } from "@/api/workflow/definition";
  import router from "@/router";
  
  const { proxy } = getCurrentInstance();
  const { flow_status, cooperate_type } = proxy.$useDict('flow_status', 'cooperate_type');
  const ids = ref([]);
  const showSearch = ref(true);
  const imgUrl = ref("");
  const flowChart = ref(false);
  const total = ref(0);
  const instanceList = ref([]);
  
  const data = reactive({
    queryParams: {
      pageNum: 1,
      pageSize: 10,
      nodeName: null,
      flowStatus: null,
      createBy: null,
      createTime: null,
    }
  });
  // 动态加载的组件相关
  const approve = ref(null);
  const dynamicComponent = ref(null);
  const approveDialogVisible = ref(false);
  const testLeaveVo = ref(null);
  const taskId = ref(null);
  const businessId = ref(null);
  
  const { queryParams } = toRefs(data);
  
  /** 查询流程实例列表 */
  function getList() {
    donePage(queryParams.value).then(response => {
      instanceList.value = response.rows;
      total.value = response.total;
    });
  }
  /** 搜索按钮操作 */
  function handleQuery() {
    queryParams.value.pageNum = 1;
    getList();
  }
  /** 重置按钮操作 */
  function resetQuery() {
    proxy.resetForm("queryForm");
    handleQuery();
  }
  // 多选框选中数据
  function handleSelectionChange(selection) {
    ids.value = selection.map(item => item.id)
    single.value = selection.length!==1
    multiple.value = !selection.length
  }
  /** 审批记录按钮操作 */
  function showDoneList(instanceId, formPath, testLeaveVo) {
    const params = { disabled: false, pageNum: queryParams.value.pageNum, formPath, testLeaveVo };
    router.push({ path: `/done/done-list/index/${instanceId}`, query: params });
  }
  function toFlowImage(instanceId) {
    flowImage(instanceId).then(response => {
      flowChart.value = true;
      imgUrl.value = "data:image/gif;base64," + response.data;
    });
  }
  function handle(row) {
    // 设置任务ID和业务ID
    taskId.value = row.id;
    businessId.value = row.businessId;
  
    // 解析ext字段的JSON数据
    if (row.ext) {
      try {
        const parsedExt = JSON.parse(row.ext);
        testLeaveVo.value = { ...parsedExt };
      } catch (e) {
        console.error('Invalid ext JSON format:', row.ext);
      }
    }
  
    // 获取或设置formPath路径
    const formPath = row.formPath;
  
    // 如果存在formPath，则动态加载组件
    if (formPath) {
      // 实际情况是，不同条件对应不同的页面，所以用动态导入组件
      import(/* @vite-ignore */`../../../../views/${formPath}`).then((module) => {
        approve.value = module.default;
      });
    } else {
      approve.value = null;
    }
  }
  
  getList();
  </script>
  